Home / 1,205,043.32-1,662,959.60-688,808.30

Finding the Fourth Proportional to 1,205,043.32, 1,662,959.60 and 688,808.30

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Solution

The fourth proportional to 1,205,043.32, 1,662,959.60 and 688,808.30 is: 950,555.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,043.32 : 1,662,959.60 = 688,808.30 : x
  2. Step 2: Convert to fraction form
    1,205,043.32/1,662,959.60 = 688,808.30/x
  3. Step 3: Cross multiply
    1,205,043.32x = 1,662,959.60 × 688,808.30
  4. Step 4: Simplify right side
    1,205,043.32x = 1,145,460,368,451.90
  5. Step 5: Solve for x
    x = 1,145,460,368,451.90/1,205,043.32
  6. Step 6: Final answer
    x = 950,555.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.